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Finding the Fourth Proportional to 20,400.88, 30,597.38 and 6,361.06

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Solution

The fourth proportional to 20,400.88, 30,597.38 and 6,361.06 is: 9,540.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,400.88 : 30,597.38 = 6,361.06 : x
  2. Step 2: Convert to fraction form
    20,400.88/30,597.38 = 6,361.06/x
  3. Step 3: Cross multiply
    20,400.88x = 30,597.38 × 6,361.06
  4. Step 4: Simplify right side
    20,400.88x = 194,631,770.02
  5. Step 5: Solve for x
    x = 194,631,770.02/20,400.88
  6. Step 6: Final answer
    x = 9,540.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.